| Hawaii Energy and Environmental Technologies (HEET) Initiative |
Aug 2010 |
140 pages |
| Authors:
Richard E Rocheleau; Keith Bethune; Kevin Davies; Maheboob Virji; Antal; Michael J Jr; Michael J Cooney; Bor Yann Liaw; Stephen M Masutani; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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 | This report covers efforts by the Hawaii Natural Energy Institute of the University of Hawaii under the ONR-funded HEET Initiative that addresses critical technology needs for exploration/utilization of seabed methane hydrates and development/testing of advanced fuel cells and fuel cell systems. Methane hydrates work included: hydrate thermochemistry and kinetics; environmental impacts of methane release from seafloor hydrates; hydrate engineering applications; and international collaborative R&D. For fuel cells accomplishments included: test ... |
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| Hawaii Energy and Environmental Technologies Initiative |
JUN 2005 |
99 pages |
| Authors:
Richard E. Rocheleau; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| This report summarizes work conducted by the Hawaii Natural Energy Institute of the University of Hawaii under the Hawaii Energy and Environmental Technologies (HEET) Initiative funded through the Office of Naval Research. This initiative focused on critical technology needs associated with the exploration and utilization of seabed methane hydrates and the development and testing of advanced fuel cells and fuel cell systems. The efforts in methane hydrates encompassed six primary ... |
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| Acoustic Microscopy and Surface Brillouin Scattering of Amorphous Carbon Pressure-Synthesized from C60 |
APR 2001 |
6 pages |
| Authors:
Pavel V. Zinin; Murli H. Manghnani; Sergey Tkachev; Xinya Zhang; Alexander G. Lyapin; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| Here, we report successful measurements by surface Brillouin scattering (SBS) and scanning acoustic microscopy (SAM) of the elastic properties of small specimens of amorphous carbon obtained from C(60) under high pressure and temperature. The super hard phases of amorphous carbon were synthesized from C(60) at pressure 13 - 13.5 GPa and temperature 800-900 degrees C. Two types of acoustic waves have been detected by 5155 in super hard samples: surface ... |
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| From Stirring to Mixing in a Stratified Ocean. Proceedings Hawaiian Winter Workshop (12th) Held in the University of Hawaii at Manoa on January 16- 19, 2001 |
19 JAN 2001 |
201 pages |
| Authors:
Peter Mueller; Diane Henderson; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| Stirring and mixing are the physical processes that convert variance from the eddy to the molecular scale and that may need to be parameterized in ocean models. This scale range is highly complex and contains many physical processes. The workshop focused especially on: The parameterization of mesoscale eddies; General approaches to stirring, including the application of ideas from dynamical systems theory; Inertial instability, submesoscale motions, and vortical motions; The interplay ... |
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| Proceedings of the Third International Workshop on Very Large Floating Structures, Volumes 1, Honolulu, HI, September 22-24, 1999 |
21 SEP 1999 |
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| Authors:
R. Ertekin; Cengiz Kim; Jang Whan; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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 | The Proceedings of the Third International Workshop on Very Large Floating Structures (VLFS'99) includes 110 written contributions by 241 authors on the Mobile Offshore Base Project of the U.S. and the Mega-Float Project of Japan, as well in the general areas related to the design and analysis of VLFS. The Workshop was held in September 22-24, 1999, Honolulu, and attended by more than 160 researchers from 10 countries. |
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| Acquisition of In-situ and Remote Sensors for Measurements of Aerosols and Chemical Species |
26 FEB 97 |
13 pages |
| Authors:
Antony D. Clarke; Shiv K. Sharma; John N. Porter; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| Under this grant, the University of Hawaii has acquired instrumentation to relate remotely sensed lidar backscatter signals to both in situ measurements and to satellite derived radiances. These instruments include a turn key pulsed Nd: YAG and Ti-sapphire tunable laser transmitter and 12' lidar scanner, these are now part of SOEST scanning lidar system. The in situ characterization instrumentation package includes forward scattering spectrometer probe (FSSP), GPS receiver and a ... |
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| Acquisition of In-situ and Remote Sensors for Measurements of Aerosols and Chemical Species |
26 FEB 97 |
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| Authors:
Antony D. Clarke; Shiv K. Sharma; John N. Porter; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| Our primary objective was to acquire instrumentation that will allow the University of Hawaii (UH) to link existing expertise and existing facilities into a unique experimental package that can be directed at the characterization and quantitative measurements of aerosol and gaseous species in the troposphere. To meet this objective, we proposed to acquire the following instruments to relate remotely sensed lidar backscatter signal to both in-situ measurements and to satellite ... |
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| Evolution of Porosity and Seismic Properties of Shallow Oceanic Crust |
NOV 96 |
5 pages |
| Authors:
Gerard J. Fryer; Jill L. Karsten; Roy H. Wilkens; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| The uppermost oceanic crust undergoes substantial changes in physical properties as it is transported away from a mid-ocean ridge. Porosity must play a central role in dictating such changes. This study sought to use seismic measurements to infer porosities and so to gain an understanding of crustal aging. Techniques used were development of the theory linking porosity to seismic velocity, microscope investigation of seafloor lavas, measurement of ultrasonic velocities in ... |
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| An Investigation of the Sources and Characteristics of the Noise Component in SeaMarc II Echo Signals |
28 JAN 96 |
5 pages |
| Authors:
Stanley Zisk; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| As is well known, the SeaMarc II towfish system was lost at sea during a scientific survey cruise in the Southern Ocean near the beginning of this project. Work was immediately begun on the design and construction of a replacement mapping system to be called HAWAII MR1. The signal processing for this system was designed based on the crude and incomplete information obtained earlier from one short series of noise ... |
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| An Investigation of the Sources and Characteristics of the Noise Component in SeaMarc II Echo Signals |
28 JAN 96 |
4 pages |
| Authors:
Stanley Zisk; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| As is well known, the SeaMarc II towfish system was lost at sea during a scientific survey cruise in the Southern Ocean near the beginning of this project. Work was immediately begun on the design and construction of a replacement mapping system to be called HAWAII MR1. The signal processing for this system was designed based on the crude and incomplete information obtained earlier from one short series of noise ... |
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| Hydrographic Research Winch for R/V MOANA WAVE |
19 SEP 94 |
2 pages |
| Authors:
HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| Final Reports for Contract N00014-87-K-0181 (University of Hawaii, School of Ocean and Earth Science and Technology) |
01 SEP 94 |
393 pages |
| Authors:
HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| Research goals include a description and modeling of the kinematical structure and dynamical processes of oceanic motions that have horizontal scales from a few meters to a few kilometers. Understanding the role that these small- scale motions play in the redistribution and mixing of momentum, potential vorticity heat, and salt. Our objective is to identify the processes that affect the kinematical and dynamical evolution of near-inertial internal gravity waves, especially ... |
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| Density Structure of the Upper Oceanic Crust at Zero Porosity |
25 AUG 94 |
2 pages |
| Authors:
HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| As part of this research project, we obtained data on the density of about forty samples of submarine mid-ocean ridge basalt (MORB). These data were obtained using a pychnometer after careful hand-picking of glass shards and have a precision better than + or - 0.05 g/cu cm. A very surprising result is that the measured densities have a much greater range than expected densities calculated from their chemical composition (2.85-2.97). ... |
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| High-Temperature Elasticity of Single-Crystal Al2O3 Fibers by Brillouin Spectroscopy. |
1993 |
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| Authors:
M. H. Manghnani; V. Askarpour; J. A. DiCarlo; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| Single-crystal Al2O3 fibers with the 001 c-axis along the length of the fiber (+/- 3 degrees) are currently being evaluated as reinforcement of high temperature composites. The need exists therefore to characterize fiber elastic properties as a function of direction and temperature. Platelet composite samples for probing the fiber longitudinal and transverse acoustic phonons along 100 (C(11) and C(44)) and 001 (C(33) and C(44)) directions were prepared. The velocities of ... |
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| The Elastic Moduli of TiB2. |
1993 |
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| Authors:
Murli H. Manghnani; Edward S. Fisher; Feng-ying Li; Dennis E. Grady; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| The elastic moduli of polycrystalline TiB2 reported in literature vary considerably. Principal causes of such discrepancies are porosity and anisotropy due to preferred grain orientation. Using high precision ultrasonic interferometry, we measured 4 compressional and 8 shear velocity modes in a hot-pressed polycrystalline specimen of TiB2 (density=4.429 g/cc) and found that the elastic symmetry closely corresponds to that of a hexagonal single crystal. It has transverse isotropy, perpendicular to the ... |
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| Hawaii MRI Support for Geophysical Site Surveys: ONR Acoustic Reverberation Special Research Program (ARSRP) |
JUL 92 |
2 pages |
| Authors:
Alexander Shor; Margo H. Edwards; Stanley H. Zisk; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| Three specific tasks were identified in the grant application, as follow: (1)Standard data acquisition and processing of HAWAII MR1 acoustic backscatter and bathymetric data, which will be provided to ARSRP investigator.. .. for analysis and planning for future program components; (2) Detailed analysis of acoustic properties of raw sonar data; and (3) Software development for processing and display of backscatter imagery and bathymetry. |
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| Proceedings of Hawaiian Winter Workshop (6th) on Dynamics of Oceanic Internal Gravity Waves Held in Manoa, Hawaii on 15-18 January 1991 |
NOV 91 |
505 pages |
| Authors:
Peter Mueller; Diane Henderson; HAWAII UNIV HONOLULU SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY
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| Contents: Internal Wave Shear and Dissipation; Internal Wave Dissipation in a Non-Garrett-Munk Ocean; Testing the Critical Reflection Hypothesis; Observations of Near-Inertial Internal Waves and Mixing in the Seasonal Thermocline; On the Statistics of Fine Scale Strain in the Thermocline; Spatial Structure of Thermocline and Abyssal Internal Waves; Estimates of Small- Scale Horizontal Divergence and Relative Vorticity in the Ocean; Measurements of Ertel Vorticity Fine structure in the Eastern North Atlantic; ... |
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